Question

A book was on sale for 40% off its original price. If

Answer 1

Answer:

Option C: $30 is the original price of book.

Step-by-step explanation:

Let the original price of book be x

Given that:

Sale price = x - 40% of x

As it is given that the sale price was $18

So,

$18 =  x - 40% of x

By simplifying:

$18 = x - 0.4x

$18 = 0.6x

Dividing both sides by 0.6:

x = $18/0.6

x = $ 30

So the original price of book will be $30

i hope it will help you!

Answer 2

Answer:

Option (c) $30.00

Explanation:

Let the original price be $x

Given the rate of discount is 40%

Selling (or sale) price of the book is = $18

The original price is calculated by the formula,

Selling Price = Original Price(1 – r%)

Substituting the values in the above equation,

$18 = x (1-\frac{40}{100})$

$18 = x (\frac{60}{100})$

$x=\frac{1800}{60}$

Therefore, x = 30

Hence, option (c)is correct